I don't seem to have much luck with Scarlet Globe Radishes - admittedly the first rows were 2nd infill crops between peas and the peas covered them before they could mature but the later ones I've sown don't look like they are coming to anything either.
French Breakfast grow well for me though, in fact I even had a 2nd infill row almost get to maturity even surrounded by peas (a few were usable, and then lack of access to light stopped the rest growing any more), so I'll probably concentrate my efforts on these in the future.
I will not bother to grow International Kidney pot's next year, they have been a real let down with very little taste.
Also, I tried a dwarf pea plant this year called Tom Thumb. Will not grow that again either, extremely disappointing.
I grow in pots and containers on a south/south west facing patio, so tomato's always do extremely well and I currently have 7 plants bearing lots of fruits.
one thing I grew last year for the first time and will grow from now on is New Zealand Yam. tough as old boots (no watering, no earthing up, a little weeding, no noticeable pests that I can see)
you can eat the leaves, stems and flowers in salads,
harvest them in November once the tops are dead due to frost, and they taste great roasted with the xmas dinner!
some stayed in the ground till February and most were ok, some near the surface has some minor slug damage